Product Overview

The Kyocera L TA SGS52345 is a premium solid carbide drill engineered for high-performance CNC machining operations. Featuring a 16.00 mm diameter with a 5xD length-to-diameter ratio, this 2-flute tool is designed to deliver exceptional hole quality, dimensional accuracy, and extended tool life in demanding production environments. Manufactured in Japan to stringent ISO 9001 quality standards, the L series represents the pinnacle of drilling technology for modern manufacturing.

ISO Designation Breakdown

Engineering Dimensions & Geometry

Grade Details - Key Grade Characteristics

The TA grade substrate is a micro-grain tungsten carbide (WC-Co) with a grain size of 0.5–0.8 μm, providing an optimal balance between hardness and toughness. The TiAlN multi-layer PVD coating enhances surface hardness to approximately 3,300 HV while maintaining a low coefficient of friction (0.35–0.45 against steel).

• Hardness: 1,650 HV ( substrate) / 3,300 HV (coated)
• Transverse Rupture Strength: 3,800 MPa
• Coating Thickness: 2.5–3.5 μm
• Oxidation Resistance: Up to 900°C
• Coating Adhesion: HF1 (Rockwell C adhesion test)

Grade Comparison Matrix

Chipbreaker Profile

The L features an optimized chipbreaker geometry with a polished flute surface (Ra 0.2 μm) and a specially designed land width that promotes efficient chip curling and evacuation. The 35° helix angle ensures smooth chip flow along the flute, minimizing the risk of chip packing in deep-hole applications. A margin relief of 0.08–0.12 mm reduces friction against the hole wall, lowering heat generation and extending tool life by up to 25% compared to standard geometries.

Recommended Applications & Workpiece Materials

Application Map by Operation

Recommended Cutting Conditions

Operating Guidelines

• Peck Cycle: For depths exceeding 3xD, use a peck depth of 1–1.5xD with full retraction to clear chips.
• Coolant Pressure: Maintain minimum 20 bar (290 psi) internal coolant pressure for optimal chip evacuation in deep holes.
• Entry Angle: Ensure perpendicular entry (±1°) or use a spot drill to prevent chipping of the cutting corner.
• Tool Overhang: Minimize overhang to 4xD or less. Use hydraulic or shrink-fit chucks for best rigidity.
• Pre-Drilling: For cast iron or welded structures, consider a pilot hole 0.2 mm smaller to guide the drill.
• Tool Life Monitoring: Replace when flank wear exceeds 0.15 mm or when burr formation on the hole exit increases.

Toolholder Compatibility

Packaging & Ordering Information

• Packaging: Each unit is individually sealed in a nitrogen-purged blister pack with desiccant to prevent oxidation.
• Minimum Order Quantity: 1 piece (no MOQ for standard items).
• Lead Time: Stock items ship within 24 hours. Non-stock items: 4–6 weeks.
• Warranty: 12-month manufacturer warranty against material and coating defects.
• MPN: SGS52345 — Verify this part number against your machine tool catalog before ordering.

Catalog Meta Data

Need technical support? Our CNC tooling specialists are available to assist with grade selection, cutting parameter optimization, and toolholder recommendations. Contact us with your part number SGS52345 for personalized application engineering support.